Yes I got the meanwell 24V SMPS power supply has well. I am going to use AES or I2S and for that a friend had suggested the PI 3B+ is enough (or get a P14 when available) with Pi2AES down powering them and keep the usbsignature/shanti separateIf you are only comparing AES or LVDS Differential I2S outputs there will likely be no difference in the sound (hopefully you got a decent DAC, Amp and speakers). The advantage the USBridge has is its clean USB output (and you don't need the Pi2AES for that).
FYI it is strongly advised to get the Meanwell 24V SMPS with the Pi2AES.